edit outlook contact feilds

I'm having trouble editing the contact feilds in MS Outlook. Our staff uses personal Cell Phones and company Cell phones, and I want to add a 5th field on the General Tab where the phone numbers are listed.

I have added a field to the user defined fields, but I can't manage to 'see' that from the tabs, including the all fields tab.

Lost in CA

links>http://support.microsoft.com/?kbid=195478   http://support.microsoft.com/?kbid=195478